void change(char *a, char *b) {
	int t;
	t = *a;
	*a = *b;
	*b = t;
}

void reverseString(char *s, int sSize) {

	for (int left = 0, right = sSize - 1; left < right; ++left, --right) {
		change(s + left, s + right);
	}
}
